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Cervical Intraepithelial NeoplasiaNCT02934724

Impact of HPV Vaccine On The Prevalence Of HPV In Norway

An observational study of Cervical Intraepithelial Neoplasia and Cervical Cancer, run by Oslo University Hospital at 1 site in Norway.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The overall aim of the study is to assess the effect of school-based Human Papillomavirus (HPV) vaccination by comparing type-specific HPV prevalence between vaccinated and non-vaccinated women born in 1997. Read more about this study

Who is it for?
Ages 18 to 20 years, women onlyHealthy volunteers can take part
What is being tested?
Self sample from vagina, Self sample from the oral cavity and Questionnaire
How many people
315 participants
Where
1 siteNorway
Study dates
Nov 2016to Feb 2017
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 20 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Study population: Women resident to Norway in 2009

Who may be able to join

  • Female
  • Born in 1997
  • Resident of Norway in 2009

Who cannot join

  • Male
  • Born before or after 1997
  • Non-resident of Norway in 2009

Trial locations and contacts

1 site in 1 country.

Norway1 site
  • Oslo University Hospital, Cancer Registry of Norway

    Oslo, 0379

Other trials in Norway

About this study

Official title: Impact of HPV Vaccine On The Prevalence Of Human Papillomavirus In Mouth And Vagina In Norway

The overall aim of the study is to assess the effect of school-based Human Papillomavirus (HPV) vaccination by comparing type-specific HPV prevalence between vaccinated and non-vaccinated women born in 1997. Women born in 1997, residence to Norway in 2009 (the year of vaccine initiation of the 1997-cohort) are invited to participate in the study.

Read the detailed description

This cohort is amongst the first that was offered HPV vaccine in an organized vaccination programme globally. The women will be recruited through Facebook ads. The study will enable us to measure differences in the prevalence of HPV types in vagina and the mouth between vaccinated and non-vaccinated young women in Norway.

The womens vaccination status will be validated by linkage to the Norwegian Immunisation Registry (SYSVAK) and their residence status will be validated through linkage to the Norwegian Population Registry.

Being tested
Self sample from vagina, Self sample from the oral cavity, Questionnaire
Keywords
HPV vaccines, HPV-6, HPV-11, HPV-16, HPV-18, Gardasil
Medical subject headings
Uterine Cervical Dysplasia, Uterine Cervical Neoplasms, Oropharyngeal Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Self sample from vaginaProcedure or surgery

    Self sample using The Rover's Evalyn Brush

  • Self sample from the oral cavityProcedure or surgery

    Self sample using COPAN FloqSwab

  • QuestionnaireOther

    Questionnaire about vaccination status and sexual behaviour

Study groups in NCT02934724
Study groupRoleWhat they receive
VaccinatedWomen born in 1997, resident to Norway in 2009, vaccinated by the quadrivalent HPV vaccine. Interventions: * Self sample from vagina using Rover's Evalyn Brush * Self sample from the oral cavity using COPAN's FloqSwab * Questionnaire
Receives: Procedure: Self sample from vagina; Procedure: Self sample from the oral cavity; Other: Questionnaire
Un-vaccinatedWomen born in 1997, resident to Norway in 2009, not vaccinated by the quadrivalent HPV vaccine Interventions: * Self sample from vagina using Rover's Evalyn Brush * Self sample from the oral cavity using COPAN's FloqSwab * Questionnaire
Receives: Procedure: Self sample from vagina; Procedure: Self sample from the oral cavity; Other: Questionnaire

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Vaginal and oral HPV-6, HPV-11, HPV-16 and HPV-18 prevalence

    The differences in HPV types prevalence among vaccinees and non-vaccinees. HPV types will be assessed individually and combined.

    Measured: Within 2 months after self-collection of specimens

Secondary outcomes (1)
  1. Description of oral and vaginal overall genotype distribution among vaccinated and non-vaccination participants

    Measured: Within 2 months after self-collection of specimens

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Oct 2016 (estimated)
  2. Study startNov 2016
  3. Primary completionFeb 2017
  4. Study completionFeb 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
315 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02934724
Sponsor's protocol ID
2014/2333
Status last verified
Dec 2020
First submitted
13 Oct 2016
Last updated
14 Dec 2020
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • PLOS ONE Staff. Correction: An observational study comparing HPV prevalence and type distribution between HPV-vaccinated and -unvaccinated girls after introduction of school-based HPV vaccination in Norway. PLoS One. 2019 Dec 12;14(12):e0226706. doi: 10.1371/journal.pone.0226706. eCollection 2019.

    PubMed 31830145
  • Enerly E, Flingtorp R, Christiansen IK, Campbell S, Hansen M, Myklebust TA, Weiderpass E, Nygard M. An observational study comparing HPV prevalence and type distribution between HPV-vaccinated and -unvaccinated girls after introduction of school-based HPV vaccination in Norway. PLoS One. 2019 Oct 10;14(10):e0223612. doi: 10.1371/journal.pone.0223612. eCollection 2019.

    PubMed 31600341

Questions about this trial

What is this clinical trial studying?

An observational study of Cervical Intraepithelial Neoplasia and Cervical Cancer, run by Oslo University Hospital at 1 site in Norway.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Dec 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Norway. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Vaginal and oral HPV-6, HPV-11, HPV-16 and HPV-18 prevalence (time frame: Within 2 months after self-collection of specimens). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02934724, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Dec 2020.

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